| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| /* |
| * $Id$ |
| */ |
| |
| import java.io.PrintWriter; |
| import java.io.StringWriter; |
| |
| import javax.xml.transform.Transformer; |
| import javax.xml.transform.TransformerFactory; |
| import javax.xml.transform.ErrorListener; |
| import javax.xml.transform.stream.StreamResult; |
| import javax.xml.transform.stream.StreamSource; |
| |
| import javax.ejb.SessionBean; |
| import javax.ejb.SessionContext; |
| |
| /** |
| * @author Morten Jorgensen |
| */ |
| public class TransformBean implements SessionBean { |
| |
| private SessionContext m_context = null; |
| |
| private final static String nullErrorMsg = |
| "<h1>XSL transformation error</h1>"+ |
| "<p>'null' parameters sent to the XSL transformation bean's "+ |
| "<tt>transform(String document, String translet)</tt> method.</p>"; |
| |
| private static final String NAMESPACE_FEATURE = |
| "http://xml.org/sax/features/namespaces"; |
| |
| /** |
| * Generates HTML from a basic error message and an exception |
| */ |
| private void errorMsg(PrintWriter out, Exception e, String msg) { |
| out.println("<h1>Error</h1>"); |
| out.println("<p>"+msg+"</p><br>"); |
| out.println(e.toString()); |
| } |
| |
| /** |
| * Main bean entry point |
| */ |
| public String transform(String document, String transletName) { |
| |
| // Initialise the output stream |
| final StringWriter sout = new StringWriter(); |
| final PrintWriter out = new PrintWriter(sout); |
| |
| try { |
| if ((document == null) || (transletName == null)) { |
| out.println(nullErrorMsg); |
| } |
| else { |
| TransformerFactory tf = TransformerFactory.newInstance(); |
| try { |
| tf.setAttribute("use-classpath", Boolean.TRUE); |
| } catch (IllegalArgumentException iae) { |
| System.err.println( |
| "Could not set XSLTC-specific TransformerFactory " |
| + "attributes. Transformation failed."); |
| } |
| |
| Transformer t = |
| tf.newTransformer(new StreamSource(transletName)); |
| |
| // Do the actual transformation |
| final long start = System.currentTimeMillis(); |
| t.transform(new StreamSource(document), |
| new StreamResult(out)); |
| final long done = System.currentTimeMillis() - start; |
| out.println("<!-- transformed by XSLTC in "+done+"msecs -->"); |
| } |
| } |
| |
| catch (Exception e) { |
| errorMsg(out, e, "Impossible state reached."); |
| } |
| |
| // Now close up the sink, and return the HTML output in the |
| // StringWrite object as a string. |
| out.close(); |
| return sout.toString(); |
| } |
| |
| /** |
| * |
| */ |
| public void setSessionContext(SessionContext context) { |
| m_context = context; |
| } |
| |
| // General EJB entry points |
| public void ejbCreate() { } |
| public void ejbRemove() { } |
| public void ejbActivate() { } |
| public void ejbPassivate() { } |
| public void ejbLoad() { } |
| public void ejbStore() { } |
| } |